Bill and Peggy Stephenson, both 74, were found dead in their home last weekend. No details about their deaths have been released by authorities.

Boone County Sheriff's Office spokesman Tom Scheben issued a release to the media explaining the reason for the withholding of information in this case.

"We absolutely cannot jeopardize the integrity of the investigation by the premature release of information," Scheben explained.

Bill helped spread the gospel at truck stops through the Truckers Chapel ministry. Peggy played organ at Union Baptist Church.

The couple had been married for 50 years.

The funeral was held at Florence Baptist church -- instead of Union Baptist, where the couple worshiped -- because of more than 1,300 people attended the funeral.

Trucker Mark Niesen, who found out about the slayings while on the road in Texas, was among them.

"I know what he was doing in the world was positive, teaching people about Jesus, and what happened to him was not right," Niesen said.

None of the Stephensons' many friends could imagine why someone might have killed the couple.

"If they knew these people personally and everything, I can't imagine somebody doing that to these people," said friend Richard Miller. "There's so many people today that are phony. Bill was real. He was the real deal. Peggy was the real deal, and they cared about people."

A private burial followed the funeral.

"I know there was probably not a dry eye in there," said mourner Mark Fitzwater. "It was awesome, just as great tribute to their lives and the lives that they touched."